Update code for Python3

iwla.py

@@ -482,9 +482,9 @@ class IWLA(object):
 
         row = [0, nb_visits, stats['viewed_pages'], stats['viewed_hits'], stats['viewed_bandwidth'], stats['not_viewed_bandwidth']]
         if nb_days:
-            average_row = map(lambda v: int(v/nb_days), row)
+            average_row = list(map(lambda v: int(v/nb_days), row))
         else:
-            average_row = map(lambda v: 0, row)
+            average_row = list(map(lambda v: 0, row))
 
         average_row[0] = self._('Average')
         average_row[4] = bytesToStr(average_row[4])
@@ -642,6 +642,8 @@ class IWLA(object):
         self._callPlugins(conf.POST_HOOK_DIRECTORY)
 
         if args.display_only:
+            if not 'stats' in self.meta_infos.keys():
+                self.meta_infos['stats'] = {}
             self._generateDisplay()
             return